<%@ page language="java" pageEncoding="UTF-8"%>
<%
    final  double pi = 3.14159265358979324;

    final  double a = 6378245.0;

    final  double ee = 0.00669342162296594323;
		    request.setCharacterEncoding("UTF-8");
		    String slat = request.getParameter("lat");
		    String slng = request.getParameter("lng");
		    double lat=Double.parseDouble(slat);
		    double lng=Double.parseDouble(slng);
		    double rlat;
	        double rlng;
			
			if ((lng < 72.004 || lng > 137.8347)||(lat < 0.8293 || lat > 55.8271)){
	            rlat = lat;
	            rlng = lng;
	            out.println("{\"lng\":" + rlng + ",\"lat\":" + rlat + ",\"error\":1}");
	        }else{
			double x =lng - 105.0;
			double y=lat - 35.0;

			double ret = -100.0 + 2.0 * x + 3.0 * y + 0.2 * y * y + 0.1 * x * y + 0.2 * Math.sqrt(Math.abs(x));
    ret += (20.0 * Math.sin(6.0 * x * pi) + 20.0 * Math.sin(2.0 * x * pi)) * 2.0 / 3.0;
    ret += (20.0 * Math.sin(y * pi) + 40.0 * Math.sin(y / 3.0 * pi)) * 2.0 / 3.0;
    ret += (160.0 * Math.sin(y / 12.0 * pi) + 320 * Math.sin(y * pi / 30.0)) * 2.0 / 3.0;
	
	        double dLat =ret;
			
			x =lng - 105.0;
			y=lat - 35.0;
			 double ret2 = 300.0 + x + 2.0 * y + 0.1 * x * x + 0.1 * x * y + 0.1 * Math.sqrt(Math.abs(x));
    ret2 += (20.0 * Math.sin(6.0 * x * pi) + 20.0 * Math.sin(2.0 * x * pi)) * 2.0 / 3.0;
    ret2 += (20.0 * Math.sin(x * pi) + 40.0 * Math.sin(x / 3.0 * pi)) * 2.0 / 3.0;
    ret2 += (150.0 * Math.sin(x / 12.0 * pi) + 300.0 * Math.sin(x / 30.0 * pi)) * 2.0 / 3.0;
			
	        double dLon = ret2;
	        double radLat = lat / 180.0 * pi;
	        double magic = Math.sin(radLat);
	        magic = 1 - ee * magic * magic;
	        double sqrtMagic = Math.sqrt(magic);
	        dLat = (dLat * 180.0) / ((a * (1 - ee)) / (magic * sqrtMagic) * pi);
	        dLon = (dLon * 180.0) / (a / sqrtMagic * Math.cos(radLat) * pi);
	        rlat = lat + dLat;
	        rlng = lng + dLon;
	        out.println("{\"lng\":" + rlng + ",\"lat\":" + rlat + ",\"error\":0}");
	        }
		%>
